One of the most active unicellular predators is the infusoria-shoe, known to many at least by its name. It belongs to the ciliated, the most highly organized protozoa.
the type of reproduction of annual plants is only by seeds (sexual). And there are two ways of reproduction: 1) seedling and 2) seedless. The seedling method involves
In this case, proceeding from the question, the following answer can be given: Human life and activities in the mountains are associated with more difficult natural conditions. In
Christopher Columbus, long before his discovery of the “erroneous” arrival in India, hatched a plan to get to Asia by sailing westward. He voiced his project both to
The first force of nature that primitive people were able to master is fire. This event happened due to receiving fire from a lightning strike. Later, people began
First of all, this is the need for food, primitive people moved to another area in search of food and to hunt animals. When cattle breeding already arises,
In one of the laws, Solon forbade the sale of bread abroad. Suppose which part of the population benefited from this law? Against whom is it directed? Apparently,
Planet Earth is not the largest planet in the Solar System. According to scientists, the average size of our planet is about 6 sextillion tons. Since ancient times,
Proteins are biopolymers, the monomers of which are amino acids. In the primary structure of a protein, amino acids are covalently linked by a peptide bond. It is